Gezici's survey of 2,814 respondents, conducted on June 2-3, showed Erdogan receiving 47.1 percent of votes in the first round of presidential election, down from a level of 48.7 percent in a survey which it conducted a week earlier.

The poll showed that the AK Party's alliance with the nationalist MHP would fall short of a majority in the 600-seat assembly, with 48.7 percent of the votes, unchanged from the figure in the previous survey a week earlier.